The Factor Which Is Probably Least Responsible for the Rise

Multiple Choice

The factor which is probably least responsible for the rise in the incidence of bacterial diseases once controlled by antibiotics is

A) the genetic adaptability of bacteria.
B) the spread of bacteria around the globe.
C) the increased amount of ultraviolet light because of the thinning ozone layer.
D) the overuse of antibiotics in treatment.
E) the use of antibiotics in the dairy industry.